BeagleBone Black System
Reference Manual
Page 8 of 108
6.1.3 USB Power ............................................................................................................................39
6.1.4 Power Selection .....................................................................................................................39
6.1.5 Power Button .........................................................................................................................40
6.1.6 Battery Access Pads ...............................................................................................................40
6.1.7 Power Consumption ..............................................................................................................41
6.1.8 Processor Interfaces ..............................................................................................................41
6.1.9 Power Rails ...........................................................................................................................43
6.1.10 Power LED .......................................................................................................................46
6.1.11 TPS65217C Power Up Process ........................................................................................46
6.1.12 Processor Control Interface .............................................................................................47
6.1.13 Low Power Mode Support ................................................................................................47
6.2 SITARA XAM3359AZCZ100 PROCESSOR .......................................................................................48
6.2.1 Description ............................................................................................................................48
6.2.2 High Level Features ..............................................................................................................49
6.2.3 Documentation.......................................................................................................................49
6.3 DDR3L MEMORY ............................................................................................................................50
6.3.1 Memory Device ......................................................................................................................50
6.3.2 DDR3L Memory Design ........................................................................................................50
6.3.3 Power Rails ...........................................................................................................................52
6.3.4 VREF .....................................................................................................................................52
6.4 2GB EMMC MEMORY .....................................................................................................................53
6.4.1 eMMC Device ........................................................................................................................53
6.4.2 eMMC Circuit Design............................................................................................................54
6.5 MICRO SECURE DIGITAL ..................................................................................................................55
6.5.1 uSD Design ............................................................................................................................55
6.6 USER LEDS ......................................................................................................................................56
6.7 BOOT CONFIGURATION ....................................................................................................................57
6.7.1 Boot Configuration Design ....................................................................................................57
6.7.2 Default Boot Options .............................................................................................................58
6.8 10/100 ETHERNET ............................................................................................................................59
6.8.1 Ethernet Processor Interface .................................................................................................59
6.8.2 Ethernet Connector Interface ................................................................................................60
6.8.3 LAN8710A Mode Pins ...........................................................................................................62
6.9 HDMI INTERFACE ...........................................................................................................................63
6.9.1 Supported Resolutions ...........................................................................................................63
6.9.2 HDMI Framer........................................................................................................................63
6.9.3 HDMI Video Processor Interface ..........................................................................................64
6.9.4 HDMI Control Processor Interface .......................................................................................65
6.9.5 Interrupt Signal......................................................................................................................65
6.9.6 Audio Interface ......................................................................................................................65
6.9.7 Power Connections ................................................................................................................66
6.9.8 HDMI Connector Interface ....................................................................................................67
7.0 CONNECTORS .................................................................................................................................68
7.1 EXPANSION CONNECTORS ................................................................................................................68
7.1.1 Connector P8 .........................................................................................................................69
7.1.2 Connector P9 .........................................................................................................................71
7.2 POWER JACK ....................................................................................................................................73
7.3 USB CLIENT ....................................................................................................................................74
7.4 USB HOST .......................................................................................................................................75
7.5 SERIAL HEADER ...............................................................................................................................76
7.6 HDMI ..............................................................................................................................................78
7.7 MICROSD .........................................................................................................................................79
7.8 ETHERNET ........................................................................................................................................80
8.0 CAPE BOARD SUPPORT ................................................................................................................81
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